Hyperon productions from Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV - INSPIRE

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Hyperon productions from Au+Au collisions at $\sqrt{s_{NN}}$ =200 GeV

Purabi Ghosh
(
- Fakir Mohan U., Balasore
)
,
Sushant K. Singh
(
- Calcutta, VECC and
- HBNI, Mumbai
)
,
Santosh K. Agarwalla
(
- Fakir Mohan U., Balasore
)
,
Jajati K. Nayak
(
- Calcutta, VECC
)

Jun 28, 2022

12 pages

e-Print:

2206.13986 [nucl-th]

View in:

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Abstract: (arXiv)

We evaluate centrality dependence of hyperon,

\Lambda, \Xi, \Omega

and

K

meson yields from Au+Au collisions at

\sqrt{s_{NN}}

=200 GeV using rate equation and compare with experimental observations. An increase in the yield per participating nucleon is observed with centrality. Higher rate of multistrange productions compared to single-strange are also observed in case of central collisions. Using rate equation or momentum integrated Boltzmann equation we discuss the yield microscopically which are then normalised with thermal pions to get the yield ratio,(

H_s+\bar{H_s}

)/(

\pi^++\pi^-

) at various centralities. We have also evaluated the relative yield of anti hyperons per participant at various centralities and compared with observations made at RHIC. Increase in the rate of

\Xi

yield compared to

\Lambda

is realised in most central collisions. We find multi strange

\Xi,\Omega

freeze-out at a temperature very close to

T_c

and

\Lambda, K

do little later.

Note:

12 pages, 5 figures

yield: ratio
hyperon: production
meson: yield
antihyperon: yield
freeze-out: temperature
impact parameter
Boltzmann equation
thermal
Brookhaven RHIC Coll
200 GeV-cms/nucleon

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Figures(7)

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